About this Data Transfer Rate Converter
Data Transfer Rate Converter helps distinguish network speeds commonly advertised in bits per second from file-transfer rates often shown in bytes per second.
Formula or method
8 bits = 1 byte; decimal prefixes use 1000 between k, M and G units.
Example
100 Mbps = 12.5 MB/s in decimal units.
Common uses
- Convert Mbps to MB/s.
- Compare Gbps and GB/s.
- Estimate theoretical transfer-rate equivalents.
How to use this tool
- Enter the values or text requested by the calculator.
- Choose units or options when the tool provides them.
- Select the calculation button and review the result.
- Use the formula, example and notes on this page to check whether the result fits your situation.
Important note
Real download speeds can be lower because of protocol overhead, congestion, storage performance and provider conditions.
Frequently asked questions
Why is 100 Mbps not 100 MB/s?
A byte contains 8 bits, so 100 megabits per second equals 12.5 megabytes per second before overhead.
Are the prefixes decimal?
Yes. This converter uses 1000-based networking-style prefixes.